SpongeBob SquarePants is the main protagonist, and the eponymous character, of the Nickelodeon animated comedy series of the same name. He was designed by marine biologist and animatorStephen Hillenburg, and is voiced by Tom Kenny. SpongeBob is a childish, joyful, eccentric sea sponge who lives in a pineapple in the underwater city of Bikini Bottom. He works as a fry cook at The Krusty Krab, a job that he is exceptionally skilled. SpongeBob lacks a lot of knowledge and is a constant annoyance to those around him (especially Squidward Tentacles), but he is very good-natured. He appears in all of the episodes in the series, and he was soon to be Nickelodeon's main mascot.